<template>
  <div>
    <el-breadcrumb separator-class='el-icon-arrow-right'>
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <el-row :gutter='20'>
        <el-col :span='7'>
          <el-input placeholder='请输入内容' v-model='queryInfo.query' clearable @clear='getUserList()'>
            <el-button slot='append' icon='el-icon-search' @click='getUserList()'></el-button>
          </el-input>
        </el-col>
        <el-col :span='4'>
          <el-button type='primary' @click='addDialogVisible = true'>添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表 -->
      <el-table :data='userList' :border='true' stripe style='width: 100%'>
        <el-table-column type='index' label='序号'></el-table-column>
        <el-table-column prop='username' label='姓名'></el-table-column>
        <el-table-column prop='email' label='邮箱'></el-table-column>
        <el-table-column prop='mobile' label='电话'></el-table-column>
        <el-table-column prop='role_name' label='角色'></el-table-column>
        <el-table-column label='状态'>
          <template slot-scope='scope'>
            <el-switch v-model='scope.row.mg_state' @change='userStateChange(scope.row)'>
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label='操作'>
          <template slot-scope='scope'>
            <el-button type='primary' icon='el-icon-edit' size='mini' @click='showEditDialog(scope.row.id)'></el-button>
            <el-button type='danger' icon='el-icon-delete' size='mini'
                       @click='removeUserById(scope.row.id)'></el-button>
            <el-tooltip effect='dark' content='分配角色' placement='top-start' :enterable='false'>
              <el-button type='warning' icon='el-icon-setting' size='mini' @click='setRoles(scope.row)'></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination @size-change='handleSizeChange' @current-change='handleCurrentChange'
                     :current-page='queryInfo.pagenum' :page-sizes='[1, 2, 5, 10]' :page-size='queryInfo.pagesize'
                     layout='total, sizes, prev, pager, next, jumper'
                     :total='this.total'>
      </el-pagination>
    </el-card>

    <el-dialog
      title='添加用户'
      :visible.sync='addDialogVisible'
      width='50%' @close='addDialogClosed'>
      <el-form :model='addForm' :rules='addFormRules' ref='addFormRef' label-width='80px'>
        <el-form-item label='用户名称' prop='username'>
          <el-input v-model='addForm.username'></el-input>
        </el-form-item>
        <el-form-item label='密码' prop='password'>
          <el-input v-model='addForm.password'></el-input>
        </el-form-item>
        <el-form-item label='邮箱' prop='email'>
          <el-input v-model='addForm.email'></el-input>
        </el-form-item>
        <el-form-item label='手机' prop='mobile'>
          <el-input v-model='addForm.mobile'></el-input>
        </el-form-item>
      </el-form>
      <span slot='footer' class='dialog-footer'>
        <el-button type='primary' @click='addUser'>确 定</el-button>
        <el-button @click='addDialogVisible = false'>取 消</el-button>
      </span>
    </el-dialog>

    <el-dialog
      title='修改用户' :visible.sync='editDialogVisible' width='50%' @close='editDialogClosed'>
      <el-form :model='editForm' :rules='editFormRules' ref='editFormRef' label-width='80px'>
        <el-form-item label='用户名称'>
          <el-input v-model='editForm.username' disabled></el-input>
        </el-form-item>
        <el-form-item label='邮箱' prop='email'>
          <el-input v-model='editForm.email'></el-input>
        </el-form-item>
        <el-form-item label='手机' prop='mobile'>
          <el-input v-model='editForm.mobile'></el-input>
        </el-form-item>
      </el-form>

      <span slot='footer' class='dialog-footer'>
        <el-button type='primary' @click='editUserInfo'>确 定</el-button>
        <el-button @click='editDialogVisible = false'>取 消</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色 -->
    <el-dialog title="分配角色" :visible.sync="setRolesDialogVisible" @close="setRolesDialogClosed" width="50%">
      <div>
        <p>当前的用户 : {{ userInfo.username }}</p>
        <p>当前的角色 : {{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"> </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRolesDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRolesInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/ // 验证邮箱的正则表达式
      if (regEmail.test(value)) {
        return callback() // 合法邮箱
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的邮箱'))
    }

    // 验证手机的规则
    var checkMobeli = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'))
    }

    return {
      //验证邮箱的规则
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {
        username: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '密码的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobeli,
            trigger: 'blur'
          }
        ]
      },
      editFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobeli,
            trigger: 'blur'
          }
        ]
      },

      setRolesDialogVisible: false,
      userInfo:
        {
          username: '',
          role_name: ''
        },
      rolesList: [],
      // 保存已经选中的角色id值
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status != 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
      console.log(this.userList)
    },

    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange(newPage) {
      //console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },

    async userStateChange(userinfo) {
      const { data: res } = await this.$http.put('users/' + userinfo.id + '/state/' + userinfo.mg_state)
      if (res.meta.status !== 200) {
        return this.$message.error('修改状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },

    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },

    setRolesDialogClosed() {
      this.userInfo = ''
      this.selectRoleId = ''
    },

    async removeUserById(id) {
      // 询问用户是否删除用户
      const confirmRusult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '永久删除该用户', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      console.log(confirmRusult)
      // 用户点击了删除,则返回字符串 confirm
      // 用户取消了删除,则返回字符串 cancel
      if (confirmRusult !== 'confirm') {
        return this.$message.info('已经取消了删除')
      }
      this.$http.delete('users/' + id).then(res => {
        const { data: response } = res
        console.log(response)
        if (response.meta.status !== 200) {
          return this.$message.error('该用户删除失败')
        }
        this.$message.success('该用户已经删除')
        this.getUserList()
      })
    },

    addUser() {
      this.$refs.addFormRef.validate(async vaild => {
          if (!vaild) return
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            return this.$message.error('添加用户失败')
          }

          this.$message.success('添加用户成功')
          this.addDialogVisible = false
          this.getUserList()
        }
      )
    },

    async editUserInfo() {
      this.$refs.editFormRef.validate(async vaild => {
        if (!vaild) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, this.editForm)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户失败')
        }

        this.$message.success('更新用户成功')
        this.editDialogVisible = false
        this.getUserList()
      })
    },

    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询数据失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },

    async setRoles(userInfo) {
      this.userInfo = userInfo
      // 再展示对话框之前获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      this.setRolesDialogVisible = true,
      this.rolesList = res.data
      console.log(this.rolesList)
    },

    async saveRolesInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色!')
      }
      console.log(this.selectRoleId)
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectRoleId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败!')
      }
      this.$message.success('更新角色成功!')
      this.getUserList()
      this.setRolesDialogVisible = false
    }

  }
}
</script>

<style lang='less' scoped>

</style>

